EP 0819892 B1 20030502 - Heat exchanger for sanitary water preparation
Title (en)
Heat exchanger for sanitary water preparation
Title (de)
Wärmetauscher zur Brauchwasserbereitung
Title (fr)
Echangeur de chaleur pour la production d'eau sanitaire
Publication
Application
Priority
DE 19628773 A 19960717
Abstract (en)
[origin: EP0819892A2] The heat exchanger comprises a spiral tube (5) for feeding usage water into tank (2) arranged around central insert. The tank is fed with hot water. The tube (5) is arranged in a screw line-shaped groove (7) running peripherally in the insert (3) and the hot water is fed into the groove. The groove is formed on the outer periphery (6) of the insert (3). The grooved insert with its outer surface (6) contacts the inner wall (9) of the tank (3) in a medium-tight manner. The flanks of the groove run lip-fashion narrowing in the direction of the inner wall (9). Fixing components are provided for the tube and are formed as bulges on the flanks. The insert may be of thermoplastic.
IPC 1-7
IPC 8 full level
CPC (source: EP)
F24D 3/087 (2013.01); F28D 7/024 (2013.01); F28D 7/10 (2013.01); F28F 9/013 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0819892 A2 19980121; EP 0819892 A3 19990127; EP 0819892 B1 20030502; AT E239196 T1 20030515; DE 19628773 A1 19980122; DE 59709951 D1 20030605; DK 0819892 T3 20030825; ES 2198517 T3 20040201; PT 819892 E 20030930
DOCDB simple family (application)
EP 97111705 A 19970710; AT 97111705 T 19970710; DE 19628773 A 19960717; DE 59709951 T 19970710; DK 97111705 T 19970710; ES 97111705 T 19970710; PT 97111705 T 19970710